Park Tool FR-4 Freewheel Remover - Atom, etc WORKSHOP Union Shoes were born to

Union Shoes were born to rip

making setup quicker and more straightforward

fully internal cable routing and a lightweight high-modulus carbon construction

so it keeps spinning no matter what

Park Tool FR-4 Freewheel Remover - Atom, etc WORKSHOP Union Shoes were born toThe FR 4 is designed to fit the 20 spline tool fittings found on older SunTour freewheels. Constructed from heat treated alloy tool steel, the FR 4 features a 1" tool fitting for use with an adjustable wrench, socket, or bench vise. Features Fits 20 spline tool fittings with an approximate outer diameter of 21. 6 mm Fits Atom, Regina, splined Zeus, and some Schwinn approved freewheels 1" hexagonal base compatible with a 1" socket or wrench Mfr Claimed